5d200c2c4b
It is not always very useful since GEGL makes heavy use of threads, and therefore a backtrace of the main thread for an error on another thread is mostly useless. But that's a start. I am still improving. I was holding on non-GIMP messages until now because we don't have as much control on them, and for some errors, they may be huge. For instance, the bug told by Massimo in bug 792787, comment 22, generates hundreds of thousands (and even millions for big enough polygons) of errors. But I can now allow these to pass since previous commit when I now only display a few errors, and then redirect remaining errors to stderr. Also get rid of gimp_third_party_message_log_func() and instead make gimp_message_log_func() handle correcly non-GIMP messages by keeping their domain.
365 lines
11 KiB
C
365 lines
11 KiB
C
/* GIMP - The GNU Image Manipulation Program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#define _GNU_SOURCE /* need the POSIX signal API */
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#include <stdlib.h>
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#include <string.h>
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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#include <gio/gio.h>
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#include <glib/gstdio.h>
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#include "libgimpbase/gimpbase.h"
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#include "core/core-types.h"
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#include "core/gimp.h"
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#include "errors.h"
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#ifdef G_OS_WIN32
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#include <windows.h>
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#endif
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/* private variables */
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static Gimp *the_errors_gimp = NULL;
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static gboolean use_debug_handler = FALSE;
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static GimpStackTraceMode stack_trace_mode = GIMP_STACK_TRACE_QUERY;
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static gchar *full_prog_name = NULL;
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static gchar *backtrace_file = NULL;
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/* local function prototypes */
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static void gimp_message_log_func (const gchar *log_domain,
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GLogLevelFlags flags,
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const gchar *message,
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gpointer data);
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static void gimp_error_log_func (const gchar *domain,
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GLogLevelFlags flags,
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const gchar *message,
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gpointer data) G_GNUC_NORETURN;
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static G_GNUC_NORETURN void gimp_eek (const gchar *reason,
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const gchar *message,
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gboolean use_handler);
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/* public functions */
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void
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errors_init (Gimp *gimp,
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const gchar *_full_prog_name,
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gboolean _use_debug_handler,
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GimpStackTraceMode _stack_trace_mode,
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const gchar *_backtrace_file)
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{
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const gchar * const log_domains[] =
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{
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"Gimp",
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"Gimp-Actions",
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"Gimp-Base",
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"Gimp-Composite",
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"Gimp-Config",
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"Gimp-Core",
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"Gimp-Dialogs",
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"Gimp-Display",
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"Gimp-File",
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"Gimp-GEGL",
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"Gimp-GUI",
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"Gimp-Menus",
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"Gimp-Operations",
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"Gimp-PDB",
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"Gimp-Paint",
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"Gimp-Paint-Funcs",
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"Gimp-Plug-In",
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"Gimp-Text",
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"Gimp-Tools",
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"Gimp-Vectors",
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"Gimp-Widgets",
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"Gimp-XCF",
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"LibGimpBase",
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"LibGimpColor",
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"LibGimpConfig",
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"LibGimpMath",
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"LibGimpModule",
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"LibGimpThumb",
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"LibGimpWidgets"
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};
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gint i;
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g_return_if_fail (GIMP_IS_GIMP (gimp));
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g_return_if_fail (_full_prog_name != NULL);
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g_return_if_fail (full_prog_name == NULL);
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#ifdef GIMP_UNSTABLE
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g_printerr ("This is a development version of GIMP. "
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"Debug messages may appear here.\n\n");
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#endif /* GIMP_UNSTABLE */
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the_errors_gimp = gimp;
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use_debug_handler = _use_debug_handler ? TRUE : FALSE;
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stack_trace_mode = _stack_trace_mode;
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full_prog_name = g_strdup (_full_prog_name);
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backtrace_file = g_strdup (_backtrace_file);
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for (i = 0; i < G_N_ELEMENTS (log_domains); i++)
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g_log_set_handler (log_domains[i],
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G_LOG_LEVEL_WARNING |
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G_LOG_LEVEL_MESSAGE |
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G_LOG_LEVEL_CRITICAL,
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gimp_message_log_func, gimp);
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g_log_set_handler ("GEGL",
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G_LOG_LEVEL_WARNING |
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G_LOG_LEVEL_MESSAGE |
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G_LOG_LEVEL_CRITICAL,
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gimp_message_log_func, gimp);
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g_log_set_handler (NULL,
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G_LOG_LEVEL_ERROR | G_LOG_FLAG_FATAL,
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gimp_error_log_func, gimp);
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}
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void
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errors_exit (void)
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{
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the_errors_gimp = NULL;
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if (backtrace_file)
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g_free (backtrace_file);
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}
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void
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gimp_fatal_error (const gchar *message)
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{
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gimp_eek ("fatal error", message, TRUE);
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}
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void
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gimp_terminate (const gchar *message)
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{
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gimp_eek ("terminated", message, use_debug_handler);
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}
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/* private functions */
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static void
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gimp_message_log_func (const gchar *log_domain,
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GLogLevelFlags flags,
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const gchar *message,
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gpointer data)
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{
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Gimp *gimp = data;
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const gchar *msg_domain = NULL;
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GimpMessageSeverity severity = GIMP_MESSAGE_WARNING;
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/* All GIMP messages are processed under the same domain, but
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* we need to keep the log domain information for third party
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* messages.
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*/
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if (! g_str_has_prefix (log_domain, "Gimp") &&
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! g_str_has_prefix (log_domain, "LibGimp"))
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msg_domain = log_domain;
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if (flags & (G_LOG_LEVEL_CRITICAL | G_LOG_LEVEL_WARNING))
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{
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GimpCoreConfig *config = gimp->config;
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GimpDebugPolicy debug_policy;
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g_object_get (G_OBJECT (config),
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"debug-policy", &debug_policy,
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NULL);
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if ((debug_policy == GIMP_DEBUG_POLICY_CRITICAL &&
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(flags & G_LOG_LEVEL_CRITICAL)) ||
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debug_policy == GIMP_DEBUG_POLICY_WARNING)
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{
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severity = GIMP_MESSAGE_ERROR;
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}
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}
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if (gimp)
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{
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gimp_show_message (gimp, NULL, severity, msg_domain, message);
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}
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else
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{
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const gchar *reason;
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switch (flags & G_LOG_LEVEL_MASK)
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{
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case G_LOG_LEVEL_WARNING:
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reason = "WARNING";
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break;
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case G_LOG_LEVEL_CRITICAL:
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reason = "CRITICAL";
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break;
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default:
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reason = "MESSAGE";
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break;
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}
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g_printerr ("%s: %s-%s: %s\n",
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gimp_filename_to_utf8 (full_prog_name),
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log_domain, reason, message);
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}
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}
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static void
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gimp_error_log_func (const gchar *domain,
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GLogLevelFlags flags,
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const gchar *message,
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gpointer data)
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{
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gimp_fatal_error (message);
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}
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static void
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gimp_eek (const gchar *reason,
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const gchar *message,
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gboolean use_handler)
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{
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GimpCoreConfig *config = the_errors_gimp->config;
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GimpDebugPolicy debug_policy;
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gboolean eek_handled = FALSE;
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/* GIMP has 2 ways to handle termination signals and fatal errors: one
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* is the stack trace mode which is set at start as command line
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* option --stack-trace-mode, this won't change for the length of the
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* session and outputs a trace in terminal; the other is set in
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* preferences, outputs a trace in a GUI and can change anytime during
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* the session.
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* The GUI backtrace has priority if it is set.
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*/
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g_object_get (G_OBJECT (config),
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"debug-policy", &debug_policy,
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NULL);
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/* Let's just always output on stdout at least so that there is a
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* trace if the rest fails. */
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g_printerr ("%s: %s: %s\n", gimp_filename_to_utf8 (full_prog_name),
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reason, message);
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#if ! defined (G_OS_WIN32) || defined (HAVE_EXCHNDL)
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if (use_handler)
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{
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#ifndef GIMP_CONSOLE_COMPILATION
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if (debug_policy != GIMP_DEBUG_POLICY_NEVER &&
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! the_errors_gimp->no_interface)
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{
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FILE *fd;
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gboolean has_backtrace = TRUE;
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/* If GUI backtrace enabled (it is disabled by default), it
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* takes precedence over the command line argument.
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*/
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#ifdef G_OS_WIN32
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const gchar *gimpdebug = "gimp-debug-tool-" GIMP_TOOL_VERSION ".exe";
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#elif defined (PLATFORM_OSX)
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const gchar *gimpdebug = "gimp-debug-tool-" GIMP_TOOL_VERSION;
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#else
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const gchar *gimpdebug = LIBEXECDIR "/gimp-debug-tool-" GIMP_TOOL_VERSION;
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#endif
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gchar *args[7] = { (gchar *) gimpdebug, full_prog_name, NULL,
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(gchar *) reason, (gchar *) message,
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backtrace_file, NULL };
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gchar pid[16];
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g_snprintf (pid, 16, "%u", (guint) getpid ());
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args[2] = pid;
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#ifndef G_OS_WIN32
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/* On Win32, the trace has already been processed by ExcHnl
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* and is waiting for us in a text file.
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*/
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fd = g_fopen (backtrace_file, "w");
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has_backtrace = gimp_print_stack_trace ((const gchar *) full_prog_name,
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fd, NULL);
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fclose (fd);
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#endif
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/* We don't care about any return value. If it fails, too
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* bad, we just won't have any stack trace.
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* We still need to use the sync() variant because we have
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* to keep GIMP up long enough for the debugger to get its
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* trace.
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*/
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if (has_backtrace &&
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g_file_test (backtrace_file, G_FILE_TEST_IS_REGULAR) &&
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g_spawn_async (NULL, args, NULL,
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G_SPAWN_SEARCH_PATH | G_SPAWN_STDERR_TO_DEV_NULL | G_SPAWN_STDOUT_TO_DEV_NULL,
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NULL, NULL, NULL, NULL))
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eek_handled = TRUE;
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}
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#endif /* !GIMP_CONSOLE_COMPILATION */
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#ifndef G_OS_WIN32
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if (! eek_handled)
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{
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switch (stack_trace_mode)
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{
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case GIMP_STACK_TRACE_NEVER:
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break;
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case GIMP_STACK_TRACE_QUERY:
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{
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sigset_t sigset;
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sigemptyset (&sigset);
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sigprocmask (SIG_SETMASK, &sigset, NULL);
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gimp_on_error_query ((const gchar *) full_prog_name);
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}
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break;
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case GIMP_STACK_TRACE_ALWAYS:
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{
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sigset_t sigset;
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sigemptyset (&sigset);
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sigprocmask (SIG_SETMASK, &sigset, NULL);
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gimp_print_stack_trace ((const gchar *) full_prog_name,
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stdout, NULL);
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}
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break;
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default:
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break;
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}
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}
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#endif /* ! G_OS_WIN32 */
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}
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#endif /* ! G_OS_WIN32 || HAVE_EXCHNDL */
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#if defined (G_OS_WIN32) && ! defined (GIMP_CONSOLE_COMPILATION)
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/* g_on_error_* don't do anything reasonable on Win32. */
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if (! eek_handled && ! the_errors_gimp->no_interface)
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MessageBox (NULL, g_strdup_printf ("%s: %s", reason, message),
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full_prog_name, MB_OK|MB_ICONERROR);
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#endif
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exit (EXIT_FAILURE);
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}
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